修正排序
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@@ -4,6 +4,7 @@ import (
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"fmt"
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"log"
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"reflect"
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"regexp"
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"strconv"
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"strings"
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@@ -174,6 +175,7 @@ func NewSchema(config Config) (graphql.Schema, error) {
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"collect_count": &graphql.Field{Type: graphql.Int, Description: "收藏数"},
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"create_time": &graphql.Field{Type: graphql.DateTime, Description: "图像创建时间"},
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"update_time": &graphql.Field{Type: graphql.DateTime, Description: "图像更新时间"},
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"activity": &graphql.Field{Type: graphql.Boolean, Description: "图像活动"},
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"article": &graphql.Field{Type: article, Description: "图像所属文章"},
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"praise": &graphql.Field{Type: graphql.Boolean, Description: "当前用户是否点赞", Resolve: func(p graphql.ResolveParams) (interface{}, error) {
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var user_id = p.Context.Value("user_id").(int)
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@@ -397,34 +399,34 @@ func NewSchema(config Config) (graphql.Schema, error) {
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}),
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Args: graphql.FieldConfigArgument{
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"praise": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中指定用户点赞过的"},
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"era": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中指定上线年份的"},
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"device": &graphql.ArgumentConfig{Type: graphql.String, Description: "游戏设备"},
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"sort": &graphql.ArgumentConfig{Type: graphql.String, Description: "排序方法", DefaultValue: "id"},
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"order": &graphql.ArgumentConfig{Type: orderType, Description: "排序方向", DefaultValue: "ASC"},
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"orientation": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选横屏竖屏图像"},
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"follower": &graphql.ArgumentConfig{Type: graphql.Int, Description: "获取指定ID用户的关注列表发布的图像"},
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"interest": &graphql.ArgumentConfig{Type: graphql.Int, Description: "获取指定ID用户的兴趣推荐图像"},
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"similar": &graphql.ArgumentConfig{Type: graphql.Int, Description: "获取与指定ID图像相似的图像"},
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"id": &graphql.ArgumentConfig{Type: graphql.Int, Description: "获取指定ID的图像"},
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"width": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中指定宽度的"},
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"height": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中指定高度的"},
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"comment_num": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中评论数等于指定值的"},
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"praise_count": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中点赞数等于指定值的"},
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"collect_count": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中收藏数等于指定值的"},
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"article_id": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中属于指定文章ID的"},
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"user_id": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中属于指定用户ID的"},
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"era": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中指定上线年份的"},
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"device": &graphql.ArgumentConfig{Type: graphql.String, Description: "游戏设备"},
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"sort": &graphql.ArgumentConfig{Type: graphql.String, Description: "排序方法", DefaultValue: "id"},
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"orientation": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选横屏竖屏图像"},
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"content": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中含有指定内容的"},
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"remark": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中含有指定备注的"},
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"description": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中含有指定描述的"},
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"tags": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中含有指定标签的"},
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"rank": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中含有指定等级的"},
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"text": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中含有指定文字的"},
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"comment_num": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中评论数等于指定值的"},
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"praise_count": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中点赞数等于指定值的"},
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"collect_count": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中收藏数等于指定值的"},
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"article_id": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中属于指定文章ID的"},
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"user_id": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中属于指定用户ID的"},
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"create_time": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中创建时间等于指定值的"},
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"update_time": &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中更新时间等于指定值的"},
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"first": &graphql.ArgumentConfig{Type: graphql.Int, Description: "翻页参数(傳回清單中的前n個元素)"},
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"last": &graphql.ArgumentConfig{Type: graphql.Int, Description: "翻页参数(傳回清單中的最後n個元素)"},
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"after": &graphql.ArgumentConfig{Type: graphql.Int, Description: "翻页参数(傳回清單中指定遊標之後的元素)"},
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"before": &graphql.ArgumentConfig{Type: graphql.Int, Description: "翻页参数(傳回清單中指定遊標之前的元素)"},
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"order": &graphql.ArgumentConfig{Type: orderType, Description: "排序方向", DefaultValue: "ASC"},
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},
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Resolve: func(p graphql.ResolveParams) (interface{}, error) {
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// 定义参数结构体
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@@ -443,7 +445,7 @@ func NewSchema(config Config) (graphql.Schema, error) {
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var total int
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var images []Image
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var query = goqu.Dialect("mysql").Select("web_images.id", goqu.L("ROW_NUMBER() OVER(ORDER BY id ASC)").As("row_num")).From("web_images")
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var query = goqu.Dialect("mysql").From("web_images")
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// 参数映射
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var argFormat = []string{"id", "width", "height", "content", "remark", "description", "tags", "rank", "comment_num", "praise_count", "collect_count", "article_id", "user_id"}
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@@ -504,22 +506,9 @@ func NewSchema(config Config) (graphql.Schema, error) {
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item = append(item, int(id))
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}
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toGoquExpressions := func(ids []int) []goqu.Expression {
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expressions := make([]goqu.Expression, len(ids))
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for i, id := range ids {
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expressions[i] = goqu.V(id)
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}
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return expressions
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}
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expressions := toGoquExpressions(item)
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interfaceExpressions := make([]interface{}, len(expressions))
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for i, expr := range expressions {
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interfaceExpressions[i] = expr
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}
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query = query.Where(goqu.Ex{"web_images.id": goqu.Op{"in": item}}).
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Order(goqu.Func("FIELD", append([]interface{}{goqu.I("web_images.id")}, interfaceExpressions...)...).Asc())
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query = query.Where(goqu.Ex{"web_images.id": goqu.Op{"in": item}}).Select("web_images.id", goqu.L(
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fmt.Sprintf("ROW_NUMBER() OVER(ORDER BY FIELD(%s, %s))", "web_images.id", regexp.MustCompile(`[\[\]]`).ReplaceAllString(strings.Join(strings.Fields(fmt.Sprint(item)), ", "), "")),
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).As("row_num"))
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}
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// 筛选:兴趣推荐
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@@ -592,8 +581,8 @@ func NewSchema(config Config) (graphql.Schema, error) {
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// 取所有数据的前N条
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var cursor string
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if args.After != 0 {
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cursor = fmt.Sprintf(`WHERE row_num > (SELECT row_num FROM RankedArticles WHERE RankedArticles.id = %d)`, args.After)
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if p.Args["after"] != nil {
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cursor = fmt.Sprintf(`WHERE row_num > (SELECT row_num FROM RankedArticles WHERE RankedArticles.id = %d)`, p.Args["after"].(int))
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}
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var limit int = 10
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@@ -603,15 +592,15 @@ func NewSchema(config Config) (graphql.Schema, error) {
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limit = args.Last
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}
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// 取大于游标的数据
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sql = fmt.Sprintf(`
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WITH RankedArticles AS (%s)
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SELECT web_images.* FROM web_images JOIN(
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SELECT RankedArticles.id FROM RankedArticles %s ORDER BY row_num LIMIT %d
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) AS LimitedRanked ON web_images.id = LimitedRanked.id;
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SELECT * FROM web_images INNER JOIN(
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SELECT id, row_num FROM RankedArticles %s
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) AS LimitedRanked ON LimitedRanked.id = web_images.id
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ORDER BY LimitedRanked.row_num LIMIT %d
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`, sql, cursor, limit)
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fmt.Println(sql)
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fmt.Println("cursor:", cursor, limit)
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if err := db.Raw(sql).Scan(&images).Error; err != nil {
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fmt.Println("获取图像列表失败", err)
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@@ -629,7 +618,8 @@ func NewSchema(config Config) (graphql.Schema, error) {
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find = find.Preload(item)
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}
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if err := find.Find(&images).Error; err != nil {
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orderClause := fmt.Sprintf("FIELD(id, %s)", regexp.MustCompile(`[\[\]]`).ReplaceAllString(strings.Join(strings.Fields(fmt.Sprint(ids)), ","), ""))
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if err := find.Order(orderClause).Find(&images).Error; err != nil {
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fmt.Println("获取图像列表失败", err)
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return nil, err
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}
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